peters



UNI

` l Ronnie ooLvrN, or conm/1131A, rnNNsYLvANIA.

` CONSTRUCTION or Hannaiwis,"``

To au whom-r mmm-m;

` it `known `thatjI, Ronn'r" IQ "Corwin, of Columbia, in lthe county ofLancaster and Stateof Pennsylvania,have invented anew i and ImprovedHydrant for the Prevention of Freezing and Leakage; and I do 'herebydeclare thatthe ollowingis a full, clear, and exact descriptionthereof,reference being Vhad to the accompanying drawing, in which-Figure l; is a vertical section of the hydrant; F ig. 2, detached parts.

The nature of my `invention consists in forming and arranging the jointsand valves of a hydrant so as to `prevent leakage under the heaviestpressure, and also from wear. i

The construction is as follows: A cylindrical cup or lower chamber (a)is constructed with a flange (a) projecting out horizontally around itsbottom through which screws pass to fasten it down to its place; a tubeenters this chamber on one side, and forms the induction pipe (a2),which the water enters `from the fountainhead; around the upper andouter edge of this chamber (a) a screw is cut,on to which another piece(t) screws; above the screw part of (b), it contracts` leaving thediameter at (b) smaller and forming a square shoulder for a valve seat;to one Side of this part an eduction pipe (b2) is connected, and on theother side a small'waste pipe (3) is inserted, so as to extend clearthrough into this chamber; the bore does not pierce straight through theend of the tube into the chamber, but turns up at right angles withinthe chamber, and comes out above. At a little distance above theeductionpipe (b2) the chamber is contracted on the inside Jfornoing a doublesquare shoulder, and leaving an aperture just large enough to be filledby' a rod described further on;yabout one inch above this it is turnedout larger, for the purpose of admitting1 the collar or enlargement f)of the shaft (7") the outside of this part of (Z2) is of the samediameter all the-way excepting a collar (b5) on the outside of which ascrew is cut for attaching the cap (e) Into the top an excavation (66)is turned out all around; the inside of this excavation is turnedstraight down to a little below the top of a collar; the outside of thisexcavation is broken by a shoulder about half way down`the upperparl-,being of, larger diameter than the lower; into this a cap (c)fits, and'is ground in air tight; a hole 1s made through the centerofthis cap lfor the rod (f) topass through; A

bracket `is represented also detached, Fig

is screwed onto the collar, and rises up over the cap above named; thisbracket has `a hole through its center, for the rod to pass through, andbetween it and the cap an elliptic spring is placed; over this apparatusa cap (c) is screwed to the collar (2)5), around chamber (6'). `Beforethe cap (c) is put `in place a rod (f) is inserted; this rod A vhas a`collar or projection around it (7) which has a smaller otl'set belowit; these exactly `fit the upper bore of the chamber (b) air tight. Inthe space between the eduction pipe and the contracted part above, thereis a washer (e) which justs fits it, and a piece of leather may befitted in to perfect the joint if necessary. On the rod below thiswasher, a spiral spring is placed which bears against said washer and acollar (2) on the rod, which has a limited i motion; a flange on thiscollar projects over the hole in the waste pipe (b3), and a pin (i) madeconical at the bottom screws down through said flange into the hole;below the collar a ring,(3) isput on the rod to keep the collar a.proper distance from the valve on the bottom of the rod. This valve(7c)V is made and attached in the following way: l

on the lower end of the rod (f) a screw is cut, on which a button aboutthe diameter of the chamber (Z2) at the lower part, but a littlesmaller, is` screwed; a ring of leather is then put on, against saidbutton, and proj ecting all around beyond it upon this a disk of metal,nearly lling the lower chamber (a) is screwed, there being a nut cast onit below, to sustain it; around this last named plate or disk, there isa row ofholes, as shown in the detached viewbetween the outer edge ofthe leather and the side of the chamber.

To operate this machine the rod (f) is borne down andthe water rushes upall -around the valve (7c) through the holes in its edge which strainout all chips or which would impede the operation of the valve; it

then passes through the eduction pipe out to j the place where it isrequired the waste pipe being closed by the pin (712) being forced` downinto it. l/Vhen the force that keeps down valve (f) is removed, thepressure of 11o the Water on the underside of the valve forces it uptight against its seat and the Waste pipe is unstopped; this allows theWater which ills the eduction pipe (b2) and chamber (ZJ) to run out andthus prevent the hydrant from freezing` in cold Weather. The collar (f)on the rod, and the cap (c) both ,ground in, break joint in such a Wayvthat While they allovv a slight motion up and doWn, prevent thepossibility of leakage; this is of the utmost importance When Water isbrought down from great elevations, and as the pin which stopsthe Wastepipe has a sniall motion independent of the valve (7:) no Water can belost, While the hydrant is in operation` at that point.

